The virginia opossum has gradually spread from the east coast of the united states to the west coast as well as northward into canada. researchers suggest this move north is in response to milder winters and man-made water reservoirs. this is an example of a a. result. b. theory. d. hypothesis. c. procedure.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

the correct answer is 2 and 4